Olden Silver Mine, Offerdal, Krokom, Jämtland County, Swedeni
| Regional Level Types | |
|---|---|
| Olden Silver Mine | Mine |
| Offerdal | Parish |
| Krokom | Municipality |
| Jämtland County | County |
| Sweden | Country |
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Latitude & Longitude (WGS84):
63° 47' 51'' North , 13° 28' 49'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Name(s) in local language(s):
Oldens silvergruva
There are several sulphide bearing quartz-veins within the Offerdal parish, one is located on the western slope of the Oldfjället. Mined already in the middle of 17th century but also later in the 19th. Cronstedt visited the site in 1756 and said that "the ore aint either rich (in silver) or concentrated enough".
In spite of his opinion, a Swedish finance group formed in 1826 in order to produce lead. An international group made in 1840 another effort and also a new one in 1870. According to Bredberg the galena should contain ~775 g/t Ag.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
8 valid minerals.
Detailed Mineral List:
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Fluorite Formula: CaF2 |
| ⓘ Galena Formula: PbS |
| ⓘ Graphite Formula: C |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Pyrrhotite Formula: Fe1-xS |
| ⓘ Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Graphite | 1.CB.05a | C |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 3 - Halides | |||
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Graphite | C |
| O | Oxygen | |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| F | Fluorine | |
| F | ⓘ Fluorite | CaF2 |
| S | Sulfur | |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Pyrrhotite | Fe1-xS |
| S | ⓘ Sphalerite | ZnS |
| Ca | Calcium | |
| Ca | ⓘ Fluorite | CaF2 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Regions, Features and Areas containing this locality
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